ACK/Cmnt: [j:intel-iotg][PULL][SRU][v2] Raptor lake: Enable Time Coordinated Compute interface driver

Tim Gardner tim.gardner at canonical.com
Thu Apr 27 17:37:06 UTC 2023


On 4/24/23 1:54 PM, Philip Cox wrote:
> BugLink:https://bugs.launchpad.net/bugs/2012755 
> <https://bugs.launchpad.net/bugs/lp1996675>
> 
> [Impact]Enable Time Coordinated Compute interface driver.
> 
> [Fix]
> This is pulling in a set of patches to enable the TCC interface driver 
> for raptor lake in the intel-iotg kernel.
> 
> [Test Case]
> I've tested the kernel, and didn't hit any regressions, and it will be 
> thoroughly tested by QA once it is available in the PPA.
> 
> [Where Problems Could Occur]
> The changes cherry-picked clean, except for one of them, which needed 
> slight context changes .  As this is exposing new functionality, the 
> chance for regressions is low.
> 
> [v2]
> -updated subject line
> -updated to buglink to public bug
> ----------------------------------------------------------------
> The following changes since commit 900672bb3984f9ae4198ed7f7b1f734b6a8181e1:
> 
> tcc: rounding possible non page-aligned ssram address (2023-04-19 
> 11:58:20 -0400)
> 
> are available in the Git repository at:
> 
> https://git.launchpad.net/~philcox/+git/lp1996675 
> <https://git.launchpad.net/~philcox/+git/lp1996675> 
> e113d315cd874b8eed93edc88769f620f3c3fc55
> 
> for you to fetch changes up to e113d315cd874b8eed93edc88769f620f3c3fc55:
> 
> tcc: Choose different L3 cache miss perf event for ADL-N. (2023-04-24 
> 15:48:19 -0400)
> 
> ----------------------------------------------------------------
> Qiang Rao (6):
> Support RPL in measurement function.
> Assume default hardware prefetch bitmask in measurement function.
> tcc: fix patch style problem
> tcc: Map and show crl version number in /proc.
> tcc: Update hardware prefetcher disable bits for ADL and RPL in cache 
> hit/miss measurement.
> tcc: Choose different L3 cache miss perf event for ADL-N.
> 
> arch/x86/kernel/acpi/boot.c | 20 ++---
> drivers/tcc/tcc_buffer.c | 264 
> +++++++++++++++++++++++++++++++++--------------------------
> drivers/tcc/tcc_buffer.h | 140 ++++++++++---------------------
> include/acpi/actbl2.h | 27 +++---
> 4 files changed, 209 insertions(+), 242 deletions(-)
> 
> 
Acked-by: Tim Gardner <tim.gardner at canonical.com>

Lotta stuff going on in patch 4 that has nothing to do with the commit 
description. Looks like that ought to be at least 2 patches.
-- 
-----------
Tim Gardner
Canonical, Inc




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